Is this a proof coin? How to determine if it is.

Discussion in 'US Coins Forum' started by capthank, Nov 15, 2018.

  1. capthank

    capthank Well-Known Member

    I think this Bicentennial Quarter might be a proof as it has the S mint mark.
     

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  3. 1916D10C

    1916D10C Key Date Mercs are Life! 1916-D/1921-D/1921

    Wrong.

    (This is what happens when 1916D10C tries to answer questions about modern coins)
     
    Last edited: Nov 15, 2018
    capthank likes this.
  4. capthank

    capthank Well-Known Member

    Thanks. Never noticed the rim is squared instead of rounded.
     
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  5. CoinCorgi

    CoinCorgi Derp, derp, derp!

  6. CoinCorgi

    CoinCorgi Derp, derp, derp!

    Not sure how that happened, but I was trying to post the fact that there are 1776-1976 S non proof silver clad quarters. Your picture is hard to see clearly so I don't know whether you have a proof or not.
     
  7. 1916D10C

    1916D10C Key Date Mercs are Life! 1916-D/1921-D/1921

    -edited-
     
    Last edited: Nov 15, 2018
  8. CoinCorgi

    CoinCorgi Derp, derp, derp!

    Right.

    http://mintsetguide.com/1976-silver-3-piece-mint-set/

     
    1916D10C likes this.
  9. 1916D10C

    1916D10C Key Date Mercs are Life! 1916-D/1921-D/1921

  10. capthank

    capthank Well-Known Member

    Yes, I have that set and another is a blue square presentation and my separate quarter looks like the quarter in the two sets
     
  11. desertgem

    desertgem MODERATOR Senior Errer Collecktor Moderator

    The dog has teeth! :)
     
  12. CoinCorgi

    CoinCorgi Derp, derp, derp!

    And apparently no one under 40 has a red book! lol
     
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  13. 1916D10C

    1916D10C Key Date Mercs are Life! 1916-D/1921-D/1921

    -_- don’t rub it in CoinCorgi. I’m sorry I was blunt.
     
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  14. capthank

    capthank Well-Known Member

    Would the 40% silver weigh more than a cooper clad?
     
  15. CoinCorgi

    CoinCorgi Derp, derp, derp!

    Slight difference...need a good calibrated scale to be sure.

    Silver issue— Weight 5.75 grams; composition, outer layers of .800 silver, .200 copper bonded to inner core of .209 silver, .791 copper (net weight .0739 oz. pure silver).

    Copper-nickel issue— Weight 5.67 grams; composition, outer layers of .750 copper, .250 nickel bonded to inner core of pure copper.

    Yeoman, R.S.. A Guide Book of United States Coins 2015: The Official Red Book (Kindle Locations 2927-2929). Whitman Publishing. Kindle Edition.
     
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  16. Michael K

    Michael K Well-Known Member

  17. capthank

    capthank Well-Known Member

    My Red book shows that there is a 1976 S Copper-Nickel Clad, 1976 S Silver Clad (7,000,000) and another 1976 S Silver Clad (4,000,000) with * that many were melted in 1982
     
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  18. Clawcoins

    Clawcoins Well-Known Member

    for those that don't have a Red Book this is a good, although limited info "redbook" online, scroll down to the Bicentennial Design (1976) and there's 2 1976 S ... a clad and a 40% silver
    https://www.usacoinbook.com/coins/quarters/washington/
    click on the dates to see more info about that specific MM coin.

    A redbook has a lot of better info.
    Get one if you don't have one. You'll save yourself a lot of time and learn a lot too if you read through it from time to time.
     
  19. capthank

    capthank Well-Known Member

    Weighs 5.8g so I think it is 40% Silver and Proof. Thanks for the guidance.
     
  20. CoinCorgi

    CoinCorgi Derp, derp, derp!

    Just to be clear, weight has nothing to do with whether it is a proof or not.
     
  21. capthank

    capthank Well-Known Member

    Correct, I compared the rim to another quarter and then to my two known proofs. I am looking for a bicentennial S copper clad so I will have a better comparison.
     
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